Typewriting machine



Dec. 8, 1925 J. WALDHEIM TYPEWRITING MACHINE Filed June 22, 1923 2 Sheets-Sheet 1 Dec 8, 1925 J. WALDHElM TYPEWRITING MACHINE Filed June 22. 1923 2 Sheets-Sheet 2 Patented Dec. 8, 1925.

UNITED STATES.

PATENT OFFICE.

JOHN WALDHEIM, OF ELIZABETH, NEW JERSEY, ASSIGNOR TO UNDEEWOOID TYPE- WRITER COMPANY, OF NEW roman. Y.,.A CORPORATION OLE DELAWARE.

TYPEVRITING MACHINE.

Application filed Jane 22, 1923. Serial No. 647,041.

To all whom it may concern:

Be it known that 1, JOHN WALDHEIM, a citizen of the United States, residing in Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a speciflcation.

The invention relates to a machine for typing upon paper work-webs, comprising several plies, either fan-folded or unattached to each other, and upon each of which plies are usually printed a succession of forms; the form lengths or sections of one ply registering with those of the other plies, and carbons being interleaved withthe plies.

lhc work-webs may be continuous, or of indefinite length, according to the number of forms which compose the same. Ordinarily, however, or atleast until so worn as to call for replacement, afixed length of carbon-sheet is employed; the carbons being shifted, relatively to the work-webs from one form-length to the next succeeding form-length of work-webs when the typing of a form is completed. The usual practice has been; after typing of a form, first, to lift the platen bodily to release the web therefrom and to release the carbons for their shift; then to shift, one form-length rearward, a carbon-carrier with the carbons attached thereto, while holding the workwebs; and then to reset the composite web for commencement of typing on the next form and to replace the platen.

For the purpose, among others, of avoiding the necessity of lifting the platen preliminary to shift of the carbons, it is proposed in this invention to utilize the backward throw of the carbon-carrier, not to effect the form-to-form shift of the carbons relatively to the work-webs, but to draw back the entire composite web sufficiently to release the carbons from the platen; and then, while holding the carbon-carrier, with the carbons, stationary in rearward position, to draw forward the work-webs by hand until their outer edges reach the line of the gage where the complete forms are severed by drawing the webs against the knifeblade. This done, the entire composite web is drawn forward and reinserted under the platen.

in object of the present invention is a construction permitting of such backward throw of the carbon-carrier that the entire composite web is thereby withdrawn from the platen to a position from whence, without substantial bending, and consequent binding, of the carbons, and while the carbons are held in such backward position, the work-webs may be drawn forward, by hand, over the top of the platen a form-length with respect to the carbons; the function of the platen as the means for effecting the relative form-to-form shift of the carbons and work-webs being thus eliminated, and no necessity arising for any mechanical device for effecting such relative shift.

In the operation just noted, the pressurerolls are preferably released from the platen before the carbon-carrier is given its backward throw, and remain released, so that, after the form-to-form shift has been effected, and after severance of the typed form from the rest of the Web, the work-webs, interleaved with the carbons, may be easily reinserted down behind and around under the platen; the carbon-carrier at this time being released for forward movement as the composite web is re-inserted. When the composite web reaches a position where it can again be clamped by the feed-rolls, the feed of the web to position for commencement of printing on the new form may be effected by rotation of the platen.

Ininachines of the character mentioned, knife blades are ordinarily provided for severing the typed form-sections of the web, and gages are provided for measuring the length of web to be severed and for determining the extent of the form-to-form shift of the carbons relative to the workwebs. Heretofore, in machines in which the platen has no shift to release the carbons, these gages have been on staffs or tables which project upward from the platenframe, behind the path of movement of the web above the printing line, in positions which would preclude a movement, such as above desscribed, of the web forward over the top of the platen; and the webs have been fed around under the platen, and thence up to the gages and to the severing blades.

An object of the present invention is the provision of means whereby the gage-staffs and knives, as heretofore, may have a normal position in which they lie behind and out of the path along which the web is fed upward on leaving the printing line, but may be moved to an effective position in which not only do they not obstruct the path of forward movement of the work-webs over the top of the platen, but in which the gage-staff may form a horizontal or straightline guide for the work-webs, over the top of the platen, to the gage.

It is a feature of the invention that the servering device may be normally located in an ineffective and unobtrusive position, and may be movable therefrom to an effec tive position as an incident to the move ment of the gage-staff to the effective position of the latter; the knife and gage being conveniently connected for this purpose. It is a further feature of the invention that the severing operation may be effected at the time the web is drawn to the gage; so that, to sever the web, the gage need not first be returned to normal position; and so that, in practically the same movement in which the web is drawn to the gage, itmay be severed; and may be severed by an upward draw of the web against the blade, which is the simplestand most effective movement for this purpose.

Other features hereinafter appear.

In the accompanying drawings,

Figure 1 is a view, in side elevation, partly cross-sectional, of the platenearriage and carbon-carrier table of a machine embodying the features of the invention; the parts being in position found at the time the typing of a form-section of the web is completed.

Figure 2 is a view similar to Figure 1, except that the presure-fe'ed-rolls have been released, and the carbon-carrier moved backward with the web to free the latter of the platen, preliminary to effecting the form-to-form relative shift of the workwebs and carbons.

Figure 3 is aview, in side elevation, showing the position of the parts with the workwebs draw n forward and the carbons shifted rearward relatively thereto.

Figure 4 is a top plan view of the mechanism shown in Figure 1; the parts being, however, in Figure 3 position.

The platen 10, by means of its axle 11, is journaled for rotary movement in side plates 12 of a platen-frame. The platenframe, which carries the usual paper-table and apron 13 at the rear of the platen, is mounted in a carriage 14 for movement in letter-feed and return directions on a rail 15 on the main frame 16. A carbon-carrier table 17 is secured to the platen-carriage, and is supported for movement in letter-feed and return directions with the latter. The front reach or bar 18 of the carbon-carrier table is mounted upon, and secured to.

and advantages will brackets 19, in turn, attached to the usual rear cross-tie or bar 20 on the platen-carriage. At its rear, the table has brackets 21, in which are journaled rolls 22, by means of which the table is supported on a rail 23, carried by a standard 24. The brackets 21 have ears 25 offset therefrom under the rail 23, to hold the table to its seat. The table is a skeleton, comprising a rear bar or reach 26, similar to the bar 18, and connected to the latter by side bars or reaches 27.

The carbon-carrier comprises a base-plate 28, in which are journaled rolls 29, two at each side, and which rolls are grooved to receive and ride upon rails 30, secured to the top of the side reaches 27 of the table, so that the carrier may, without friction, be moved forward and rearward on the table. The carrier also comprises standards 31, one secured to each end of the plate 28, and each standard being stepped, as at 32, to support carbon-holding blades 33, projecting one from each side of the table, to hold the carbons 34 between the several plies or folds 35 of the web.

The web is led upward at 36, at the rear of the table, thence over a rounded rod 37 and forward through the carbon-carrier. From the carbon-carrier the web is continued forward over another rounded rod 38, thence over the rounded upper edge 39 of the rear paper-table 13 on the platenframe, and down around the platen, between the latter and the usual releasable feed-rolls 40. The web is thence fed upward over and above the printing line, as shown in Figure 1. The guide-rod 38, at the front of the carbon-carrier table, is supported on brackets 41, which form upward continuations on the brackets 19. Secured to the rod 38 is a pair of fingers 42, which serve as side gages or guide-pieces for the web. The guide-rod 37, at the rear of the paper-table, is supported by ears 43, secured to the rear table-bar 26; and, like the rod 38, is provided with fingers 44, which serve as gages or guides for the side edges of the web.

Mounted on the platen-frame, at the front thereof and above the platen, is a staff 45, on which is adjustably set a gage 46, for determining the position to which the ends of the work-webs are drawn, for removal of the typed form, and for positioning of the next form to be typed. The work-webs. above the printing line, are fed upward, in front of the stafi in the typing operation. During this operation, the carbon-carrier is drawn forward with the line-space movement of the platen, due to the action of the feed-rolls 40.

lVhen a form is completed. the feedrolls are released to Figure 2 position, by mechanism not completely shown, but which is indicated at 40 and which may be of the style found in the Underwood standard typewriting machine. Thereupon the carboncarrier is thrown rearward, to Figure 2 position, by means of a handle 47, secured to the carbon-carrierbase-plate 28. A fixed stop 48, on one or both of the side bars 27 of the carbon-carrier table, by engagement with the rear edge of the carbon-carrier base-plate 28, determines the extreme rearward, or Figure 2, position of the carboncarrier. In this position of the carboncarrier, the leading ends of the work-webs and carbons, as shown in Figure 2, are clear of the platen, having been withdrawn down, around and rearward thereof, until they are well above the platen, substantially at the top of the paper-table 13, and preferably slightly forward of the latter.

The next step is to effect the relative form-to-form shift of the work-webs and carbons. Preliminary to this, however, the staff and gage 46 are swung to Figure 3 position. To permit of this movement of the staff a5, the same is fixed by straps 4:9 to a rock-shaft 50, journaled in brackets 51, secured by screws 52 to the upper edges of the platen-frame side plates 12. It is usual to provide a knife-blade 53, against which the work-webs may be drawn, for severing the typed leading form thereof from the rest of the Web; and the movement of the staff 45 from Figure 1 to Figure 3 position may be utilized to swing the knife 58 from its normal, Figure 1, position, in which it is out of the way of the web, to its Figure or effective position. For this purpose, the rock-shaft has fast thereto an arm 54, connected by a link to one of arms 56, which carries the knife-blade. The arms 56, one at each side of the platen-frame, are pivoted at 57 on the brackets 4-1;.the latter being curved and extended forward. A stop-pin 61, on one of the brackets 41, determines the ineffective position of the knife, and, through the connections, just mentioned, the normal position of the gagestaff 45.-

lVhen the staff 45 is swung to Figure 3 position, and the shaft 50 is thereby rocked, the arm 54-, by drawing on the link 55, swings the knife-blade from its upper inclined, Figure 1., position to Figure 3 position, in which it lies horizontally in the plane of the web; the staff 4-5 being at this time also horizontal, and the gage as extending vertically upward therefrom across the horizontal path of the web. The Fig ure 3 position of the parts is determined by another stop-pin G2 on the same bracket with the stop-pin 61. y

In this positionof the parts,.and while the carbon-carrier is held in its Figure 2 position, by the handle 47, the operator seizes the leading ends of the work-webs, and draws the same forward horizontally advanced the correct distance to clear the I typed leading form-lengths of the carbons, and to position the carbons'properly in the next succeeding form-lengths.

Still holding the carbon-carrier in Figure 2 position, with one hand, the operator now draws thewebs against the knife-blade, as indicated in dotted lines in Figure 3, to sever the typed form from the rest of the Web. In detaching the form-section, there is an upward, and slightly forward, pull on the web, with a corresponding pressure on the knife blade. As to the upward pressure on the knife-blade, the latter is, in effect, dead centered with respect to the pivot 57; and the forward pull on the knife is resisted by the stop-pin 62, which consequently maintains the dead-centered position of the knife against upward movement. The gage-staff 4:5 and connected knife 53 are then swung back to normal, Figure 2, position, leaving the web with its leading end in Figure 2 position; the carbon-carrier being then released.

It remains toposition the web for typing. This is eff cted by simply drawing forward on the web and passing the same down the paper-table 13 between the platen and the feed-rolls; the carbon-carrier with the carbons moving freely forward during this operation. lVhen the leading edges of the web are between the platen and the feedrolls, the feed rolls are reapplied; and further forward feed of the web may then be effected by turning the platen by the usual hand-knobs 58 on the platen-axle, or by means of line-space mechanism, of which only the ratchet-wheel 59 on the platenshaft is shown. The lower forward edge 60 of the gage-staff 45 may serve as a ga to determine the point to which the leading edge of the work-web is fed forward in positioning the same for commencement of typing on a form.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine, the combination of a platen mounted permanently in typing position, a platen frame, releasable means for holding work-webs composed of a succession of forms and carbons interleaved therewith for line-space feed with said platen, a carrier for said carbons mounted for movement towards and from said platen, means for moving said carrier away from said platen with the composite web to clear the latter from said platen, and a gage at the delivery side of said platen, movable from a position behind said Workwebs, as they emerge from said platen, to a position in front of said platen, for gaging said work-webs as they are drawn forwardly over said platen to effectuate a relative form-to-form shift between said work-webs and said carbons.

2. In a typewriting machine, a platen permanently mounted in typing position, a platen-frame, means for effecting line-space feed of a continuous web around said platen, said means being releasable to permit the leading end of said web to be withdrawn to the rear of said platen, a plate, and a gage on the plate at the front of the platen to which the leading edge of the web may be drawn over the top of the platen, from the rear thereof, for measurement of a length to be severed therefrom; the gage-plate being pivoted to the platen-frame for move ment between a horizontal position in front of said platen, in which the gage is effective, and a rearward position to permit passage thereby of the web in the typing operation.

3. In a typewriting machine, a platen per-- manently mounted in typing position, a platen-frame, means for effecting line-space feed of a continuous web around said platen, said means being releasable to permit the leading end of said web to be withdrawn to the rear of the platen, a plate, a gage on the plate at the front of the platen to which the leading edge of the web may be drawn over the top of the platen from the rear thereof, for measurement of a length to be severed therefrom; the gage-plate being pivoted to the platen-frame for movement be tween a horizontal positionforwardly of said platen, in which the gage is effective, and a rearward position to permit passage thereby of the web in the typing operation; and a tablein horizontal alignment with the gage-plate, when the latter holds the gage in its aforesaid effective position, for guiding the web forward to a position above and at the rear of the platen.

4-. In a typewriting machine, a revoluble platen, a platen-frame, means for effecting line-space feed of a continuous web to and around the platen, a blade against which the web is drawn to sever a typed length thereof from the rest thereof, a plate or arm pivoted on the platen-frame and having thereon a gage to which the web may be drawn for measurement of the length to be severed by the blade, a movable arm on which the blade is supported, a link connecting the gage-arm or plate and the bladearm, and means for actuatingthe connected devieesto move the same together between an effective and an ineffective position; the gage-arm or plate lying horizontally above and forward of the platen when in effective position, and, when in ineffective position, being at an upward and rearward incline behind the path along which the web is linespaced from the printing line.

5. In a typewriting machine, a revoluble platen, a platen-frame, means for effecting line-space feed of a continuous web to and around the platen, a blade against which the web is drawn to sever a typed length thereof from the rest thereof, a gage to which the web may be drawn for measurement of the length to be severed by the blade, a connection between the blade and the gage whereby the two may be moved together between an ineffective and an effective position, and a stop co-operating with the blade to determine the effective positions of the two connected devices.

6. In a typewriting machine, a revoluble platen, a platen-frame, means for effecting line-space feed of a continuous web to and around the platen, a blade against which the web is drawn to sever a typed length thereof from the rest thereof, a gage to which. the web may be drawn for measurement of the length to be severed by the blade, a connection between the blade and the gage whereby the two may be moved together between an ineffective and an effec tive position, and a pair of stops co-operating with one of the connected devices to determine the effective and ineffective posilions of the devices.

7. In a typewriting machine, a revoluble platen, a platen-frame, means for effecting linespace feed of a continuous web to and around the platen, a blade, pivoted to the platen-frame, against which the web is drawn to sever a typed length thereof from the rest thereof, means for swinging the blade between a normally ineffective position and an effective position, and a stop for determining the effective position of the blade; the stop being so located that the pull on the web to sever the web causes the blade to exert a pressure on the stop, and the stop thereby to serve as an abutment for the blade to resist displacement of the blade during severance of the web.

8. In a typewriting machine, a revoluble platen, a platen-frame, means for effecting line-space feed of a continuous web to and around the platen, a blade, pivoted to the platen-fran'ie, against which the web is drawn to sever a typed length thereof from the rest thereof, means for swinging the blade between a normally ineffective position and an effective position, and a stop for determining the effective position of the blade; the stop being so located to cause the blade to be dead-centered with respect to its pivot against the pull on the web involved in severing the web.

9. In a continuous billing typewriting machine, the combination of a carriage, a

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platen around which a composite web comprising plies of work-sheets with interleaved carbon-sheets may be fed, means at the rear of the-platen to withdraw the composite web around the platen to free the carbon-sheets from the platen and bring that portion of the web including the carbon-sheets to a straightened-out position, so that the worksheets may be drawn forwardly over the platen to shift them relatively to the carbonsheets, and a knife, rearwardly of and adjacent said platen, for severing the typed portions of the work-sheets while the web is in its straightened-out position.

10. In a continuous billing typewriting machine, the combination of a carriage, a platen around which a composite web comprising plies of worksheets with interleaved carbonsheets may be fed, a carboncarrier at the rear of the platen to which the carbon-sheets are attached, a table supporting said carrier, means to actuate said carbon-carrier to withdraw the composite web around the platen to free it from the platen and bring that portion of the web including the carbon-sheets to a straightened-out position, so that the work-sheets may be drawn forwardly over the platen to shift them relatively to the carbonsheets, and a knife mounted on said table, rearwardly and above said platen, to sever the typed portions of the worksheets.

ll. In a continuous billing typewriting macl'iine, the combination of a carriage, a platen around which a composite web comprising plies of work-sheets with interleaved carbon-sheets may be fed, a table at the rear of the platen, a carbon-carrier to which the carbon-sheets are attached on said table, means to actuate said carbon-carrier to withdraw the composite web around the platen to free it from the platen and bring that portion of the web including the carbonsheets to a straightened-out position, so that the work-sheets may be drawn forwardly over the platen to shift them relatively to the carbon-sheets, and a knife arranged above the platen and beneath which the work-sheets may be drawn forwardly, so that the typed portions of the work-sheets may be moved upwardly away from the platen during a severing operation.

12. In a continuous billing typewriting machine, the combination of a carriage, a platen around which a composite web, comprising plies of work-sheets with interleaved carbon-sheets, may be fed, means at the rear of the platen to withdraw the composite web around the platen to free the carbon-sheets from the platen and bring them to a straightened-out position, so that the worksheets may be drawn forwardly over the platen to shift themrelatively to the carbonsheets, a normally ineffective gage to determine the amount ofshifting of the work- 13. In a continuous billing typewriting N machine, the combination of a carriage, a platen around which a composite web comprising plies of work-sheets with interleaved, carbon-sheets may be fed, means at the rear of the platen to withdraw the composite web around the platen to free it from the platen and bring it to a straightenedout position, so that the work-sheets may be drawn forwardly over the platen to shift them relatively to the carbon-sheets, a gage to determine the amount of shifting of the worksheets, and a knife to sever the typed portions of the work-sheets.

14. In a continuous billing typewriting machine, the combination of a carriage, a platen around which a composite web comprising plies of worksheets with interleaved carbon-sheets may be fed, means at the rear of the platen to Withdraw the composite web aroundthe platen to free it from the platen and bring that portion of the web including the carbon-sheets to a straightened-out position, so that the work-sheets may be drawn forwardly over the platen to shift them relatively to the carbon-sheets, a gage to determine the amount of shifting of the worksheets, said gage being adjustably mounted on a bar, said bar being disposed beneath the composite web during a web-gaging operation, and a knife, rearwardly and above said platen, to sever the typed portions of the work-sheets, said knife being. disposed above the composite web during a severing operation.

15. In a typewriting machine, a platen, a carriage for the platen, a table in lined position on the carriage, and over which a multiple-ply web, interleaved with carbons, may be fed to the carriage, a gage to which the leading ends of the work-webs may be drawn over and above the platen, while the carbons are retracted, to effect relative shift of the carbons and work-webs, and means for moving the gage from a normally in effective position to a position in such path in which the work-webs are drawn over and above the platen,

16. In a typewriting machine, a platen, a gage to which a web may be drawn to determine the length to be severed therefrom, a web-severing device, and means common to the gage and the web-severing device'for operating the one in conjunction with the other.

17. In a typewriting machine, the combination of a cylindrical platen around which a continuous work-sheet may be fed, a gage to position the work-sheet at various llO intervals, a knife to sever the typed portion of the Work-sheet, and means including two arms engaging each other between said gage and said knife, so that said gage and said knife may be rendered effective simultaneously.

18. In a typewriting machine, the combination of a cylindrical platen around which a continuous Work-sheet may be fed, a gage to position the Worksheet at various intervals, a knife to sever the typed portion of the worksheet, means including two arms connected to each other between said gage and said knife, so that said gage and said knife may be rendered effective simultaneously, and .a stop engaged by one of said arms to determine the effective positions of said knife and said gage.

JOHN VVALDHEIM. 

